Patents by Inventor Lars A. Stromberg

Lars A. Stromberg has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Fast fluidized bed boiler and a method of controlling such a boiler
    Patent number: 4686939
    Abstract: A completely cooled fast fluidized bed boiler comprises a reactor (4) having a bottom section (3), an integrated primary non-centrifugal mechanical particle separator (5), a gas pass (7) containing convective heat exchangers (10), and means (6,8,9) for controllably recirculating separated particles into the reactor bottom section (3). Reactor (4), separator (5) and gas pass (7) are built as an integrated unit within one and the same cooling system. The boiler is controlled by maintaining the bed temperature substantially constant or within a relatively narrow temperature interval by regulating the recirculation rate dependent on boiler load. For regulating the recirculation rate a non-mechanical valve, preferably a so-called L-valve (8), is used.
    Type: Grant
    Filed: July 15, 1985
    Date of Patent: August 18, 1987
    Assignee: Studsvik Energiteknik AB
    Inventor: Lars A. Stromberg
  • Fast fluidized bed boiler and a method of controlling such a boiler
    Patent number: 4538549
    Abstract: A completely cooled fast fluidized bed boiler comprises a reactor (4) having a bottom section (3), an integrated primary non-centrifugal mechanical particle separator (5), a gas pass (7) containing convective heat exchangers (10), and means (6,8,9) for controllably recirculating separated particles into the reactor bottom section (3). Reactor (4), separator (5) and gas pass (7) are built as an integrated unit within one and the same cooling system. The boiler is controlled by maintaining the bed temperature substantially constant or within a relatively narrow temperature interval by regulating the recirculation rate dependent on boiler load. For regulating the recirculation rate a non-mechanical valve, preferably a so-called L-valve (8), is used.
    Type: Grant
    Filed: October 14, 1983
    Date of Patent: September 3, 1985
    Assignee: Studsvik Energiteknik AB
    Inventor: Lars A. Stromberg